docs: def set_attr(self, attr_id, value):
          """Calls SQLSetConnectAttr with the given values.
  
          :param attr_id: the attribute ID (integer) to set. These are ODBC or
              driver constants.
          :parm value: the connection attribute value to set. At this time
              only integer values are supported.
          """
          fut = self._execute(self._conn.set_attr, attr_id, value)
          return fut